ZL ZT Zsource 2/3Zsource 1IEC05000444-2-en.vsdxIEC05000444 V2 EN-USFigure 45: Circuit impedanceswhere:Line data is 15.0L LZ X» = WEQUATION1419 V1 EN-USTransformer data is 222010 220% 10% 24.2100 200TX X= Þ = × = WEQUATION1420 V1 EN-USSource impedance is1 7.0SourceZ = WEQUATION1421 V1 EN-US2Source2 / 3 Source2 / 3 220220Z 5 (Z ) 5 49.470= W Þ = × = Wæ öç ÷è øEQUATION1422 V1 EN-USTable 10:General settingsSetting IED 1 IED 2 DescriptionOperation On On Operation Mode (active)NoOfTerminals 3 3 Number of current sources/circuit endsIBase (Global base) 600 A 600 A Reference current of theprotection in the primarysystem (note 1)IBase is set in the Globalbase values function(GBASVAL).TransfAonInpCh 2 1 Input currents on the inputchannels are referred to thehigh voltage side (note 2)TraAWind1Volt 220 kV 220 kV Transformer A: Y-sidevoltageTraAWind2Volt 70 kV 70 kV Transformer A: d-side voltageClockNumTransA 1 1 LV d-side lags Y-side by 30degreesTransfBonInpCh 3 2 Input currents on the inputchannels are referred to thehigh voltage side (note 2)Table continues on next pageSection 6 1MRK 505 393-UEN BDifferential protection98 Line differential protection RED650 2.2 IECApplication manual
